DR

Objective To observe the characteristics of fundus images and fluorescin angiography (FFA) in diabetic retinopathy (DR) combined with retinal vein occlusion (RVO).

摘要目的分析糖尿病视网膜病变(DR)合并视网膜静脉阻塞(RVO)的眼底和荧光素眼底血管造影(FFA)的图像。

Aimed at utilization of iron resources in pyritic slag,the study on production of metallized agglomerate with pyritic slag through coal based DR process was conducted.

合理利用硫酸烧渣中的铁资源，进行煤基直接还原生产金属化团块的研究，提出润磨造球-预热焙烧-磁选-冷固结成型的新工艺流程。

The heterogenite is partly treated in furnaces either in DR Congo or in neighbouring Zambia and then exported mostly to China via South African and Tanzanian ports.

水钴矿在刚果金或者邻国赞比进行粗加工然后大部分经南非和坦桑尼的港口出口到中国。

According to the problem of position discontinuity using GPS in city cars, a scheme that GPS is combined with DR which is composed by piezoelectric gyro and milemeter is put forward.

针对城市车辆全球定位系统(GPS)定位存在的不连续性问题,提出采用压电陀螺和里程仪组成的低成本航迹推算系统与GPS组合方案。